199 results about "Arm muscle" patented technology

The invention discloses a gesture recognition device based on arm muscle current signal detection and a motion sensor, and the gesture recognition device serving as a machine instruction input device can be used for any electronic system needing man-machine interaction. The device comprises a hand ring or an arm ring, wherein according to the shape, the hand ring or the arm ring can be worn on the wrist or the front arm, biological currents generated in the motion process of the arm muscles are extracted through one or more muscle skin current sensors tightly attached to the skin, the currents pass through an amplifier circuit, a filter circuit and an analog-digital conversion circuit, and characteristic parameters of gestures are extracted through real-time digital signal algorithm processing, and therefore the gestures are recognized. The recognized gestures are mapped to be all kinds of control instructions allowed to be configured, and the instructions are transmitted to a controlled mainframe in a wireless or wired mode through Bluetooth or others. The gestures are judged through the arm muscle currents and the motion sensor, and a bran-new man-machine interaction instruction input mode is achieved.

The invention relates to the field of abdominal exercise with the operator using the sit-up or crunch movements. More particularly, an exercise apparatus that exercises the abdominal and back muscles with the lower torso of the operator supported by a moving seat while the upper torso of the operator is supported by a moving seatback. Continuous support of the lower back prevents back strain. The articulation of the seatback is coordinated with the movement of the seat. Adjustment is provided to adjust the rate of movement of the seat relative to the seatback. Handles are provided such that the arm muscles can assist the sit-up or crunch movements.

Sports taping tights include multi-layered coats of silicone or urethane on sections in the front and back of arm muscle parts, front and back of shoulder muscle parts, the belly muscle parts, front and back of lower waist and buttock muscle parts, front and back of thigh and calf muscle parts, the front and back of ankle muscle parts and sections of knees in the inside or outside surface of the upper and lower halves of the tights applied by multi-step print coating to provide selective distribution of stronger fabric tension without necessitating cutting of main fabric, thereby maximizing the tightness of the contact of fabric with body, assisting and reinforcing the muscles and ligaments, enhancing the mobility of body, protecting and increasing the power of muscles and ligaments and protecting the body.

The invention discloses a shooting training system. The shooting training system comprises a pitching machine and a control system, wherein the pitching machine comprises a rack body, a rotary table, a rotary motor, an electronic push rod, a pitching cylinder and an electromagnet, and the rotary motor can drive the rotary table to rotate; the control system comprises a processor, a positioning module, an encoder and an electromyogram monitoring module; the positioning module, the rotary motor, the electronic push rod, the electromagnet, the encoder and a touch switch are electrically connected with the processor, and the processor drives the rotary motor and the electronic push rod to adjust a pitching angle of the pitching cylinder according to the parameters fed back by the positioning module. According to the shooting training system, the pitching angle and the pitching direction of the pitching cylinder can be automatically adjusted according to the position of a shooting person, the motion state of arm muscles of the shooting person is recorded, so that field goal percentage in actual competition can be increased.

The invention relates to a prosthetic hand control method based on an MYO armlet. An electromyographic signal of arm muscles is acquired in real time through the MYO armlet and read, the characteristic value of the electromyographic signal is extracted, hand motion mode is recognized online by means of the characteristic value and a well trained neural network model, and the motion mode is converted into a corresponding motor movement instruction which drives a prosthetic hand to make a corresponding motion; a method for training the neural network model comprises the steps of executing the hand motion, acquiring the electromyographic signal of arm muscles through the MYO armlet, reading the electromyographic signal, extracting the characteristic value of the electromyographic signal, and training the hand motion neural network model according to a sample of the characteristic value. Compared with the prior art, the method has the advantages of being convenient to use, low in cost, high in cost performance, wide in application range and the like.

A multifunctional fitness massage rehabilitation chair comprises a base. A plurality of supporting rods for fixing a chair seat are fixedly arranged between the chair seat and the base. Armrests capable of being detached and lifted are installed on the two sides of the upper portion of the chair seat. A shoulder massage assembly for alternate massage is installed on the rear side of a chair back.A lifting back massage assembly is installed in the middle of the chair back. Arm movement assemblies for alternate lifting are arranged on the front sides of the armrests. A leg movement assembly forfront-back alternate moving is arranged on the front side of the upper side of the base. A driving mechanism and a transmission mechanism connected with the driving mechanism are installed at the upper portion of the base. The shoulder massage assembly, the back massage assembly, the arm movement assemblies and the leg movement assembly are all in transmission connection with the transmission mechanism. The multifunctional fitness massage rehabilitation chair is simple in structure and convenient to use; the multifunctional fitness massage rehabilitation chair can be externally driven to effectively train leg muscles and arm muscles of a patient and massage the back and shoulders of the patient, can be operated by one person and provides convenience for postoperative rehabilitation of thepatient.

Sports taping tights include multi-layered coats of silicone or urethane on sections in the front and back of arm muscle parts, front and back of shoulder muscle parts, the belly muscle parts, front and back of lower waist and buttock muscle parts, front and back of thigh and calf muscle parts, the front and back of ankle muscle parts and sections of knees in the inside or outside surface of the upper and lower halves of the tights applied by multi-step print coating to provide selective distribution of stronger fabric tension without necessitating cutting of main fabric, thereby maximizing the tightness of the contact of fabric with body, assisting and reinforcing the muscles and ligaments, enhancing the mobility of body, protecting and increasing the power of muscles and ligaments and protecting the body.

An exercise device and method for exercising the muscles of the torso and arms. The exercise device includes a support bracket and at least one flexible arm member having a proximal end pivotally coupled to the support bracket and at least one distal end. Elastic extension members with handles provide restorative tension force which attach to the distal end(s) of the flexible arm member(s) whereby a trainee while remaining secured and comfortable in the exercise station grasps the handles and rotates the arm member from an upwardly first position to a downwardly second position thereby providing a multitude of exercise combinations. The bracket can be removeably mounted on a vertical surface and may be used while sitting or standing. The device and method permit the same muscle group to be exercised along different planes passing through that same muscle group, thereby achieving a more specific strengthening of that muscle group as desired.

The invention provides a surface myoelectrical signal based sign language recognition vocal system and method. The system includes a myoelectricity acquisition unit, an inertial measurement unit, a processor unit, and a speech synthesis unit; the myoelectricity acquisition unit is arranged an arm muscle of a subject; the inertial measurement unit is arranged on a wrist of the subject; an output end of the myoelectricity acquisition unit and an output end of the inertial measurement unit are connected to an input end of the processor unit; and an output end of the processor unit is connected to an input end of the speech synthesis unit. The method includes: acquiring an myoelectrical signal of an arm of the subject and an acceleration signal of the wrist of the subject; extracting a characteristic value of the myoelectrical signal and a characteristic value of the acceleration signal; matching the characteristic value of the myoelectrical signal, the characteristic value of the acceleration signal, and a matching model base of each sign language action; outputting the matched sign language actions in a text form; converting the text form of the sign language actions into voice; and outputting the voice of the sign language actions.

Padded arm and leg protectors having particular application to be worn around the arm and leg of one playing the game of paintball to prevent injury as a consequence of a paintball propelled from a paintball marker striking the player's arm or leg. In one embodiment, the arm protector includes a sleeve surrounding the arm and extending at least between the elbow and the wrist of the player. The sleeve has an outside top layer, an inside bottom layer, and a plurality of protective pads retained between the layers. The protective pads are strategically positioned along the sleeve to cover the wearer's elbow, his wrist and at least some of the muscles of the arm between the elbow and the wrist. The protective pads are separated and spaced from one another by respective channels which extend completely around each pad. By virtue of the foregoing, the protective pads are movable independently of one another so as to provide the arm with unrestricted movements during play, whereby to permit the player's elbow to bend, the wrist to rotate and the arm muscles between the elbow and wrist to flex at the same time.

The invention discloses a humanoid upper limb based on pneumatic muscle. The pneumatic muscle simulates human muscle for driving a shoulder joint, an elbow joint and a wrist joint to move, and the function of completely simulating the motion of the upper limb of a person is achieved. The humanoid upper limb is composed of a rib, a vertebra, a shoulder blade, a humerus, a fibula, an ulna, a spherical hinge, the pneumatic muscle and a pneumatic muscle fixing plate; the pneumatic muscle of a humanoid upper limb girdle muscle drives the shoulder joint to retract and stretch, bend and extend, inwards rotate and outwards rotate; arm muscle drives the elbow joint to bend and extend, inwards rotate and outwards rotate, and meanwhile the arm muscle and the upper limb girdle muscle cooperatively drive the shoulder joint to inwards retract, outwards stretch, inwards rotate and outwards rotate; and forearm muscle drives the wrist joint to bend and extend and retract and stretch and drives the elbow joint to bend and extend, inwards rotate and outwards rotate. The humanoid upper limb is driven by the pneumatic muscle, has the beneficial effects of being compact in structure, clean and good in anti-explosion performance, and can be used for teaching demonstration, medicinal diagnosis and scientific research.

The present invention provides a shoulder-wearable functional auxiliary mechanical arm, comprising double seven-degree-of-freedom rope-driven arms, a shoulder wearing mechanism, a rope-driven motor unit module, a control drive unit, a power module, a vision sensor, a computer and an autonomous control unit. The rope-driven motor unit module is in transmission connection with the double seven-degree-of-freedom rope-driven arms by rope-driven mechanical arm shoulder joint passive bearing mechanisms; and the vision sensor and the autonomous control unit are respectively in data connection with the computer. According to the present invention, the problem that both hands of people need extra assistance during work is solved, labor intensity of people can be reduced, and work efficiency is improved. Patients with powerless arm muscles can be helped to add the basic living self-help ability of the patients The shoulder-wearable functional auxiliary mechanical arm can also be used for assisting the disabled, so that functions of residual parts of a body are sufficiently played, the possible maximal living self-help, labor and work abilities are achieved, and the foundation is laid for the disabled to return to the society.

The invention belongs to the technical field of medical equipment, and relates to a rehabilitation nursing bed. The rehabilitation nursing bed comprises a bedstead and a bed board, wherein the bedstead comprises two long vertical columns and two short vertical columns, and sliding grooves are formed in the long vertical columns and the two short vertical columns; four third sliding blocks are arranged on the bed board and arranged in the corresponding sliding grooves in a sliding mode, a driving assembly for driving the bed board to move up and down along the sliding grooves is arranged on thebedstead, multiple grooves are formed in the upper side face of the bed board, strip-shaped air bags are arranged in the grooves, an air pump and an air transmission main pipe are arranged on the lower side face of the bed board, a valve is arranged at one end of the air transmission main pipe, the other end of the air transmission main pipe is communicated with an air outlet, the strip-shaped air bags are communicated with the air transmission main pipe through air transmission branch pipes, a rotating frame is rotationally arranged at the upper end of each long vertical column and each provided with a vibration motor and a second spring, and a handle is connected to the lower end of each second spring. By means of the rehabilitation nursing bed, a patient can be turned over and nursed conveniently and prevented from bedsores, arm muscle can be exercised to accelerate rehabilitation.

An exercise device for strengthening the abdominal muscles and the arm muscles of a user, comprising a T-shaped, tension loaded press bar that selectively telescopes within an elongated shaft when pressed by the hands of the user. The press bar is mechanically linked to the shaft by a stretchable band having an equilibrium relaxed conformation and also having a stretched conformation. When the user presses down upon the press bar, this causes the press bar to substantially retract into the shaft and simultaneously causes the rubber band to be stretched from its relaxed conformation, thereby simultaneously exercising the muscles of the user. The exercise device may be selectively folded upon three hinges, thereby providing an exercise device that is easily carried, shipped, and stored.

The invention relates to a chair, in particular to a multifunctional medical care chair. The invention provides a multifunctional medical care chair which can be used for moving arm muscle and massaging the back and the neck and comprises a chair back, a weight lifting device, a neck massaging device and a back massaging device; the weight lifting device comprises a pushing rod, a pulling rope and a heavy article; the neck massaging device comprises a rack, a gear, a cam, a face plate, a massaging block and a spring; the back massaging device comprises a massaging roller and a wave rail. The multifunctional medical care chair overcomes the defects that an existing chair cannot be used for moving the arm muscle and massaging the back and the neck, and achieves the effects of moving the arm muscle and massaging the back and the neck.

The invention discloses a virtual hand prosthesis training platform and a training method thereof based on a Myo armband and eye tracking. The virtual hand prosthesis training platform comprises the Myo armband, a Unity virtual environment, an eye tracking unit and a vibrating armband; the Unity virtual environment comprises a virtual hand prosthesis and an adaptive scene capable of grasping objects; the Myo armband comprises a plurality of dry electrodes and a nine-axis inertial module; the dry electrodes are in charge of acquiring micro current of a human arm and solving current gesture information, and the nine-axis inertial module is used for acquiring and solving current arm attitude information; the current gesture information and the current arm attitude information are transmitted to the Unity virtual environment and are used for controlling the virtual hand prosthesis to do corresponding actions; the eye tracking unit is used for analyzing positions of pupils relative to eyes and for mapping the positions in the virtual adaptive scene, so as to select the objects by virtue of the human eyes; and the vibrating armband is used for feeding object grasped information of the Unity virtual environment back to arm muscles. With the application of the training platform and the training method provided by the invention, mental pressure and economic pressure of a patient can be relieved; and meanwhile, the platform can also assess a novel hand prosthesis control algorithm effect, so that the development of myoelectric hand prostheses is promoted.

The invention relates to an intelligent wheelchair control system, which comprises a central processing unit, and a left wheel motor, a right wheel motor and a multifunction interface which are respectively connected with the central processing unit, and also comprises an electrode sensor which is connected with the central processing unit, wherein a human body current signal is collected by the sensor collects, converted into a voltage potential signal, and then transmitted to the central processing unit. Compared with the prior art, the original single handle control way can be substituted by multiple control ways such as arm muscle current signal, brain wave, head movement position and the like, so the application range of the intelligent wheelchair is greatly enlarged, and convenience is provided to the life of more mobility-handicapped people.

An exercise device for exercising the abdominal muscles, the back muscles, and the arm muscles of a user. The exercise device comprises a rectangular tubular frame having a seat pad. The frame has a right-angled pull bar assembly pivotally affixed thereunto. The pull bar assembly has a neck / head support pad. In use, the user places the frame of the exercise device upon an existing horizontal support structure, and lies down upon the device, with the buttocks of the user supported upon the seat pad, and the upper torso and head of the user supported upon the neck / head support pad. The user grasps a horizontal crossbar of the pull bar assembly within the hands of the user, and pivots the crossbar downward, thereby causing the neck / head support pad to pivot upward, and thereby elevating the back of the user above the horizontal support structure and making it easier for the user to do a number of sit-up type exercises.

An antispasticity aid device designed to aid stroke victims. The invention is a hand brace constructed to hold the thumb and fingers flat and a series of accessories designed to re-educate the muscles after a stroke. The device has a hand-mounting and thumb-mounting member. First and second restraining straps hold the hand and thumb firmly in contact with the hand-mounting and thumb-mounting member, respectively. Accessories for use with the device include: A first accessory fitting on an arm of an armchair; a second accessory providing physical therapy; a third accessory maintaining a comfortable position to rest an arm; a fourth accessory fitting frictionally over the arm of a chair; a fifth accessory accepting the mounting bracket of the device; a sixth accessory suspending the arm; a seventh accessory providing a channel for resting an arm; an eighth accessory providing exercise for arm muscles; and a ninth accessory permitting physical therapy.

The invention discloses a domestic and multifunctional body-building rehabilitation exercise device which comprises a massage chair device, a riding exercise device, a leg exercise device, a back exercise device and an arm exercise device. The massage chair device mainly performs massages such as back knocking, shoulder knocking, back malaxation and arm malaxation, the riding exercise device can exercise the legs, the leg exercise device can exercise the thighs and stretch the ligaments, and the arm exercise device can exercise the arm muscles. The domestic and multifunctional body-building rehabilitation exercise device effectively integrates body-building rehabilitation and massage, can achieve the rehabilitation training demands of different parts such as the arms, the legs and the back of the human body, meets the requirement for comprehensive body-building rehabilitation exercise of a user, has the advantages of being wide in application range, reliable in work, quick and convenient to operate and maintain, diversified in function and the like and is suitable for large-area popularization.

The invention discloses a mechanical arm with a tremble inhibiting function. The mechanical arm with the tremble inhibiting function is characterized in that a damping coefficient of a magnetorheological damper is changed to realize the adjusting of joint damping and inertia coefficients of an elbow joint, thus the biomechanical characteristic of a man-machine system is changed, and as a result, the purpose of reducing the tremble movement of the legs can be achieved; an electromyographic signal sensor is used for picking up a bio-electricity signal of arm muscle, filtering the electricity signal, recognizing non-intentional movement component in the movement information, and controlling a power source to supply power to realize active tremble inhibition. The mechanical arm comprises a bigarm, a forearm a wrist joint, the magnetorheological damper, a gear and a motor; the human elbow muscle power applying mode is simulated at the elbow joint; the elbow part is driven to move throughthe motor; the stroke of the motor can be limited to realize the bending and stretching movement of the elbow; the forearm is inwards and outwards rotated under the transmission of the gear; the wristjoint is bent and stretched through a small hydraulic rod; all supports clinging to the human arm are of arc-shaped structures which fit the sizes of arms of most of people.

The invention provides a fitness chair for middle-aged and elderly people, and belongs to the field of fitness equipment. The fitness chair comprises chair legs, a chair back and a seat. Two armrests are arranged on the chair back transversely; each armrest comprises a fixing part and a telescopic part, wherein the fixing part is fixedly arranged on the chair back, the telescopic part is connected to the fixing part and comprises a handle, a compression rod and a sleeve, one end of the sleeve is connected to the fixing part, the other end of the sleeve is opened and bent inwards to form a flange, one end of the compression rod stretches into the sleeve and is provided with a boss, the other end of the compression rod is connected with the handle, the handle is arranged vertically, the compression rod is sleeved with a compressed spring, and the two ends of the compressed spring abut against the boss and the flange respectively. The armrests for physically training arm muscles are arranged on the fitness chair for middle-aged and elderly people, routinization of the fitness function is achieved, people can take physical exercise in spare time at ordinary times, the whole armrests are simple in design and capable of meeting the requirement for exercise at ordinary times of people and promoting exercise amount, and people can maintain physical fitness.

The invention provides a myoelectricity signal identification method based on complexity, a fractal dimension and a fractal length, and aims to realize that a main operator can synchronously control a remote manipulator in a teleoperation robot system. A mode recognition characteristic uses an L-Z complexity index and fractal dimension index of a myoelectricity signal; a classifier uses an improved KNN model method which uses a clustering method as a data processing method; and an algorithm is equipped with an incremental learning capability. A hand movement speed of the operator depends on an activity intensity of arm muscles; and muscle activity intensity is represented by a maximum fractal length of the myoelectricity signal. In a certain range, the maximum fractal length of the myoelectricity signal and the hand movement speed of the operator form a monotone increasing function. The maximum fractal length of the myoelectricity signal serves as the input control amount, so as to realize the grasping speed control of the manipulator, and the good result is achieved.

An antispasticity aid device designed to aid stroke victims. The invention is a hand brace constructed to hold the thumb and fingers flat and a series of accessories designed to re-educate the muscles after a stroke. The device has a hand-mounting and thumb-mounting member. First and second restraining straps hold the hand and thumb firmly in contact with the hand-mounting and thumb-mounting member, respectively. Accessories for use with the device include: A first accessory fitting on an arm of an armchair; a second accessory providing physical therapy; a third accessory maintaining a comfortable position to rest an arm; a fourth accessory fitting frictionally over the arm of a chair; a fifth accessory accepting the mounting bracket of the device; a sixth accessory suspending the arm; a seventh accessory providing a channel for resting an arm; an eighth accessory providing exercise for arm muscles; and a ninth accessory permitting physical therapy.